Seiko Cal. 6375 - 636

The Seiko 6375-636 represents an important milestone in Seiko's 1989 lineup. With its 19mm lug width and 11.9mm profile, it sits comfortably on most wrists. [seikata-wm-e638757c7028]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

44mm

Case Thickness

11.9mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Silver

Jewels

21j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1989

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